Animals like annelids and arthropodsetc where the body can be divided intoidentical left and right halves in only one plane, exhibit ________ symmetry.A. Coelenterata    B. RadialC. Ctenophora      D. Bilateral

Q: A barnacle is a shelled______ . a. arthropod c. cephalopod b. gastropod d. crustacean

A: The group of eukaryotic, multicellular, and heterotrophic organisms is classified under the kingdom…

Q: This limb is found in a member of kingdom animalia. The class/group that this limb matches to is: a)…

A: Limbs are appendages used for locomotion. Porifera stay attached to a substrate and don't move.…

Q: an amniotic egg was crucial to the evolution of vertebrates because it provides the following to the…

A: The amniotic egg was the crucial evolutionary step that allowed the living organisms to breed…

Q: Unlike other coelomate animal phyla, mollusks lacka. segmentation.b. cephalization.c. three primary…

A: Coelomate animals are those that contain a body cavity enclosing coelom with a complete lining…

Q: One of the innovations in animal body design, segmentation, allowed fora. development of efficient…

A: Answer: Introduction: Segmentation means the animals and plants division into repetitive segments.

Q: Which of these is not a feature of amphibians?a. dry skin that resists desiccationb. metamorphosis…

A: Amphibians are little vertebrates that require water, or moist surroundings, to survive.

Q: (a) State two advantages of cephalisation (b) Outline the advancement features of reptiles that…

A: Cephalization is the differentiation of the anterior end of an organism into a definite head. This…

Q: A- The animals above are members of EE Rp A. Echinodermata B. Hemichordata C. Pterobranchia D. A & B…

A: Answer: The animals above are members of - E) B&C. The animals are belong to phylum-…

Q: Which of the following applies to a squid? a. Cephalization c. Complete digestive tract b. True…

A: The differentiation of the anterior end into the head is known as cephalization. It is associated…

Q: A land snail, a clam, and an octopus all share(A) a mantle.(B) a radula.(C) gills.(D) distinct…

A: The land snail refers to numerous snail species which lives on land. A clam refers to a bivalve…

Q: Cnidocytes (a) are characteristic of sponges (b) are found among cells lining the gastrovascular…

A: The group of eukaryotic and multicellular organisms that are heterotrophic and belong to the kingdom…

Q: Which of these is or evidence  that catecans ( whales, dolphins and porposes ) are mammals? a.…

A: Taxonomy (taxis- arrangement, nomia- method) is the branch of biology that deals with the…

Q: Crustaceans are _____. a. ecdysozoans b. nematodes c. arachnids d. parazoans

A: Answer is a.)  ecdysozoans.

Q: A characteristic unique to most species of mammals and no other vertebrates isa. endothermy.b. skin…

A: The group of multicellular, mostly motile, and heterotrophic organisms is called animals. They lack…

Q: Snakes, turtle, lizards and crocodilesfalls under which category of animals?A. Pisces…

A: The animals are the most abundant living organism that are found in almost every habitat. They have…

Q: Which of the following has a complete digestive system? a. tapeworms c. cnidarians b. sponges d.…

A: Digestive system is one of the systems in the body which carries out digestion. Digestion is the…

Q: Animals that have an anterior and posterior end are said to be_______ . The anterior end of such…

A: Animals that have an anterior and posterior end are said to  be cephalized.  The anterior end of…

Q: The amniotes include all but the a. birds. c. mammals. b. reptiles. d. amphibians.

A: The organisms which have a fetal tissue called amnion are referred to as amniotes. It is found…

Q: a ECHINODERMATA B b E MOLLUSCA F NEMATODA A CNIDARIA d

A: Metazoa or animals are multicellular eukaryotic organisms that are included in the Animal kingdom.…

Q: Distinguish between (a) radial and bilateral symmetry; (b) blastula andgastrula; (c) direct and…

A: (a) radial and bilateral symmetry -  Bilateral symmetry is where the left and the right sides of the…

Q: Bivalves, cephalopods, and gastropods are alla. arthropods.b. lophophorans.c. cnidarians.d.…

A: Animal Kingdom is a diverse group, including organisms ranging from non-motile simple sponges to…

Q: Flatworms, annelids, and roundworms are all______ . a. arthropods c. protostomes b. aceolomate d.…

A: Vertebrates are organisms which possess backbone. They also possess notochord. Examples includes:…

Q: Torsion is a unique characteristic of the a. bivalves. b. gastropods. c. chitons. d.…

A: Every group of organisms has some special characteristics that make them unique from others.…

Q: The most intelligent invertebrates are probably thea. annelids.b. arthropods.c. cephalopods.d. None…

A: According to the question, we have to find out the most intelligent invertebrates are probably the…

Q: You find a flatworm during a field trip and discover that the embryos undergo spiral cleavage. What…

A: The daughter cells are positioned in the grooves of the parent cells in a spiral division. The…

Q: The ____and_____ are grouped as Ecdysozoabecause they both molt.a. cnidarians/arthropods c.…

A: As they mature, all members of Ecdysozoa superphylum molt or lose their cuticle. They secrete a…

Q: Some amphibians never leave the water, whereasothers can survive in relatively dry terrestrial…

A: Amphibians are living organisms that can survive both in water and on land. The common examples are…

Q: Annelids and_______ have a closed circulatory system. a. insects c. flatworms b. cephalopods d. sea…

A: Introduction :- The heart pumps blood into the vessels so that it can reach the tissues and organs…

Q: The symmetry found in animals that move swiftly is ________. a. radial b. bilateral c. sequential d.…

A: The symmetry refers to the repetition of the body-parts in all living organisms. The four types of…

Q: Embryo above pictured here is a/an O A. blastula O B. gastrula O C. planula O D. zygote

A: Human embryonic development refers to the development of embryo. It involves the process of cell…

Q: How should this animal be classified? A Arthropoda C Mollusca B Annelida D Platyhelminthes

A: A dichotomous key is a useful scientific tool for identifying various organisms based on their…

Q: The pericardial cavity forms froma. evagination of the early digestive tract.b. the neural tube.c.…

A: The pericardial cavity has a small amount of serous fluid that helps to reduce lubrication and…

Q: Heterocoelous centrum is a characteristics of- (A) Amphibia (B) Reptilia (C) Birds (D) Mammalia

A: Introduction - Multicellular eukaryotic animals make up the animal kingdom. Invertebrates and…

Q: Which of the following is the largestmammal?A. Whale B. RhinocerosC. Elephant D. Human

A: Mammals are vertebrate animal that belong to class Mammalia. They possess mammary glands used to…

Q: Annelids have (a): a. pseudocoelom. b. true coelom. c. no coelom. d. none of the above

A: Answer is b.)  true coelom.

Q: explain the meaning of the following characteristics of animals a)triploblastic b)bilateral…

A: Zoology is the part of science that concentrates on the animal kingdom, including the design,…

Q: Which of the following classes is NOT a member of the Amniota? O A) Reptilia B) Amphibia C) Mammalia…

A: *Amniotes belongs to clade tetrapod vertebrates that consists of sauropsids and synapsids. *…

Q: Describe the process of neurological development in a vertebrate embryo. B.  Compare and contrast…

A: CNS of a vertebrate originates from a longitudinal groove present on the neural plate that forms the…

Q: You find a worm and discover that it has no coelom, no nephridia and a mouth but no anus. What must…

A: Xenacoelomorphs are invertebrate organisms that also lack true body cavities and are thus…

Q: Sexual reproduction in cnidarians may be carried out by which body form

A: Cnidarians are the aquatic invertebrate animal from the phylum Cnidaria. Cnidarians have two body…

Q: ______include the only winged invertebrates. a. Cnidarians c. Insects b. Echinoderms d. Crustaceans

A: Introduction :- Invertebrates are animals that do not have or develop a vertebral column, which is…

Q: whihc of the following arthropod regions does not bear legs a) cephalothorax b) abdomen c) all of…

A: Most arthropod's bodies have three sections - the head, the thorax, and the abdomen.    The thorax…

Q: Among living animals, only birds have_____ . a. a cloaca c. feathers b. amniote eggs d. a…

A: Introduction :- The tissue that will become the female fetus's intestinal, genital, and urinary…

Q: Mammals belong to a group of amniotes known as synapsids. Three major lineages of mammals had…

A: Mammals These organisms belong to the amniotes in which the embryo grow within protective…

Q: 1. Large colonies of polyps belonging to class Anthrozoa secrete hard skeletons of time which later…

A: Introduction  In biology, symmetry refers to the ordered repetition of parts in a living organism.…

Q: The Haversian canal pattern in dinosaurs suggests that they O A. were poikilotherms B. were similar…

A: Haversian canals are the channels found in bones when the cells replaces the bone with new material.…

Animal Phylogeny

Cladistics is a method of biological classification where organisms are classified based on their ancestors and their relationship with them. It is defined as the concepts and methods for determining the branching patterns of evolution and evolutionary history. Some scientists, however, have preferred the term phylogenetic systematics or phylogenetic taxonomy to emphasize the reliance on a phylogeny for classification. It is the most common and accepted method for classifying organisms.